Internet firms like Google and GoDaddy are getting attention for shutting down a neo-Nazi website, but during this weekend’s violent white supremacist rally in Charlottesville, Virginia, gig economy companies like Uber and Airbnb were forced to deal with white supremacists on the ground.

Uber's Ryan Graves said in a letter to employees that he is leaving the company's day-to-day operations. "We should have taken more time to reflect on our mistakes and make changes together," he wrote.